Detailed Information on Publication Record
2008
Coordination compounds of lanthanides with polydentate phosphine oxide ligands
SPÍCHAL, Zdeněk and Marek NEČASBasic information
Original name
Coordination compounds of lanthanides with polydentate phosphine oxide ligands
Name in Czech
Koordinační sloučeniny lanthanoidů s vícefunkčními fosforanovými ligandy
Name (in English)
Coordination compounds of lanthanides with polydentate phosphine oxide ligands
Authors
SPÍCHAL, Zdeněk (203 Czech Republic) and Marek NEČAS (203 Czech Republic, guarantor)
Edition
Bratislava, SK, VII. SEMINÁR Pokroky v anorganickej chémii, p. 72-73, 2 pp. 2008
Publisher
Univerzita Komenského v Bratislave
Other information
Language
Czech
Type of outcome
Stať ve sborníku
Field of Study
10402 Inorganic and nuclear chemistry
Country of publisher
Slovakia
Confidentiality degree
není předmětem státního či obchodního tajemství
RIV identification code
RIV/00216224:14310/08:00024829
Organization unit
Faculty of Science
ISBN
978-80-223-2523-3
Keywords in English
lanthanides; coordination polymers; structure
Tags
International impact
Změněno: 7/5/2009 14:28, doc. Mgr. Marek Nečas, Ph.D.
V originále
Current research on coordination chemistry is largely aimed at metal-organic frameworks (MOFs). These compounds consist of inorganic centers (transition metal atoms, lanthanides) and organic ligands and have regular one-, two- or three-dimensional structures. Such arrangements may lead to desired properties such as high thermal stability, luminescence (Eu, Tb compounds), porosity or ability to selectively catalyze reactions. Our research if focused on coordination compounds of lanthanides with bidentate and polydentate phosphine oxide ligands. Lanthanides are used as hydrated salts (nitrates and chlorides), and the most frequently used ligands are diphosphine dioxides of a Ph2P(O)-X-P(O)Ph2 general formula in which X = (CH2)n, (C5H4)2Fe, (C6H4)2O, etc. The structures of resulting coordination compounds depend on the lanthanide cation, additional anions in the coordination sphere of the cation, the length of the ligand and its flexibility. Flexible ligands adopt both chelating and bridging coordination modes, while rigid ligands act only as bridging and are more likely to form polymeric structures. We have prepared a number of chelates and 1D and 2D polymers, and discussed the relationships beween reactants and product structures. Therefore, we can now do some structural predictions regarding future syntheses.
In English
Current research on coordination chemistry is largely aimed at metal-organic frameworks (MOFs). These compounds consist of inorganic centers (transition metal atoms, lanthanides) and organic ligands and have regular one-, two- or three-dimensional structures. Such arrangements may lead to desired properties such as high thermal stability, luminescence (Eu, Tb compounds), porosity or ability to selectively catalyze reactions. Our research if focused on coordination compounds of lanthanides with bidentate and polydentate phosphine oxide ligands. Lanthanides are used as hydrated salts (nitrates and chlorides), and the most frequently used ligands are diphosphine dioxides of a Ph2P(O)-X-P(O)Ph2 general formula in which X = (CH2)n, (C5H4)2Fe, (C6H4)2O, etc. The structures of resulting coordination compounds depend on the lanthanide cation, additional anions in the coordination sphere of the cation, the length of the ligand and its flexibility. Flexible ligands adopt both chelating and bridging coordination modes, while rigid ligands act only as bridging and are more likely to form polymeric structures. We have prepared a number of chelates and 1D and 2D polymers, and discussed the relationships beween reactants and product structures. Therefore, we can now do some structural predictions regarding future syntheses.
Links
| GA203/08/1111, research and development project |
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